ISO/IEC INTERNATIONAL STANDARD 30134-2 First edition 2016-04-15 Information technology Data centres Key performance indicators Part 2: Power usage effectiveness (PUE) Technologies de I'information - Centres de données - Indicateurs de performance clés - Partie 2: Efficacité dans I'utilisation de la puissance (PUE) Reference number IS0/IEC 30134-2:2016(E) IEC International Organization for Standardization G INST OF STANDARDIZATION C1 5956617 @ IS0/IEC 2016 ed without license from IHS IS0/IEC 30134-2:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Intenationaibr PrganizationforStandardization icensee-ZHEJIANG INSTOF STANDJSAIEC06-All rights reserved Not for Resale, 2016/7/20 03:02:38 etworking permitted without license from IHS IS0/IEC 30134-2:2016(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms, definitions, abbreviated terms and symbols ..1 3.1 Terms and definitions. .1 3.2 Abbreviated terms.... .2 3.3 Symbols .2 4 Applicable areas of the data centre. ..3 5 Determination of power usage effectiveness (PUE) .3 6 Measurement of power usage effectiveness .4 6.1 Measuring energy consumption ..4 6.1.1 General. 4 6.1.2 Measurement period and frequency 6.1.3 Meter and measurement requirements 4 6.2 Categories of power usage effectiveness. .5 6.2.1 General. .5 6.2.2 Category 1 (PUE1) Basic resolution .5 6.2.3 Category 2 (PUE2) Intermediate resolution .5 6.2.4 Category 3 (PUE3) -Advanced resolution 6 6.2.5 Measurement placement .6 7 Reporting of power usage effectiveness. .6 7.1 Requirements .6 7.1.1 Standard construct for communicating PUE data. .6 7.1.2 Example of reporting PUE values .6 7.1.3 Data for public reporting of PUE. 7.2 Recommendations .7 7.2.1 Use of PUE category 7.2.2 Trend tracking data. .7 Annex A (normative) Energy measurements .9 Annex B (normative) Calculation of PUE using various energy supplies ..1 Annex C (normative) PUE derivatives. ..16 Annex D (informative) Interpretation of PUE and its derivatives .23 Bibliography .25 iii =ZHEJIANG INSTOF STANDARDIZATION C15956617 vided by IHS underI d without license from IHS Not for Resale, 2016/7/20 03:02:38